/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/NiagaraNodeFunctionCall.h
When overriding an input value, this updates which variable guid was bound to which input name, so it can be reassigned when the input is renamed.
void UpdateInputNameBinding ( const [FGuid](API\Runtime\Core\Misc\FGuid) & BoundVariableGuid, const [FName](API\Runtime\Core\UObject\FName) & BoundName )